all of them havent came true To the above, wrong. There are some that in some way came true. While not every part of the story has, the basic element of the story of several has. Katzztar= There are several stories he told to Kaya to entertain her but parts of them came true later on. 1-element of story is encountering a giant goldfish. Story = When we first see Kaya, Usopp is telling her about how he sailed at age five and fought a giant goldfish. it's poop was so big, he thought is was a an island. Truth= He encountered it with the Strawhats at age 17, the giants, Brody & Dory state its poop is so huge that its been mistaken for an island.